springmvc处理请求释放静态资源的三种方式:1. recourse下配置文件<mvc:default-servlet-handler/>2.springmvc的web.xml中配置直接释放的,不经过前端控制器:<mvc:resources mapping="/js/**" location=="/js/"/><mvc:resources mapping="/css/**" location="/css/"/>
<mvc:resources mapping="/img/**" location="/img/"/>
3.在前端控制器DispatcherServlet 映射路径<servletmapping>中的<url-pattern>*.do</url-pattern>